304 stainless steel is a versatile stainless steel, rust-proof performance than the 200 series of stainless steel stronger. High temperature is also better, can be high to 1000-1200 degrees. 304 stainless steel has excellent stainless steel corrosion resistance and better resistance to intergranular corrosion. Of the oxidizing acid, in the experiment concluded that: concentration ≤ 65% of nitric acid below the boiling temperature, 304 stainless steel has a strong corrosion resistance. Alkali solution and most organic acids and inorganic acids also have good corrosion resistance.